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DT2H2X---1.9.5.THM-Ref.s

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%------------------------------------------------------------------------------
% File     : DT2H2X---1.9.5
% Problem  : SEU902^5 : TPTP v9.2.1. Released v4.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : /export/starexec/sandbox/solver/bin/run_DT2H2X /export/starexec/sandbox/benchmark/theBenchmark.p 300

% Computer : n010.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Wed Feb 25 09:37:42 AM UTC 2026

% Result   : Theorem 1.32s 1.15s
% Output   : Refutation 1.32s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   28
%            Number of leaves      :    2
% Syntax   : Number of formulae    :   34 (  15 unt;   0 typ;   0 def)
%            Number of atoms       :  218 ( 105 equ;   0 cnn)
%            Maximal formula atoms :    8 (   6 avg)
%            Number of connectives :  349 (  47   ~;  18   |;  43   &; 209   @)
%                                         (   0 <=>;  11  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    9 (   4 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :   92 (  92   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :    9 (   5 usr;   3 con; 0-2 aty)
%                                         (   0  !!;  21  ??;   0 @@+;   0 @@-)
%            Number of variables   :   92 (  44   ^;  42   !;   6   ?;  92   :)

% Comments : 
%------------------------------------------------------------------------------
thf(func_def_0,type,
    d: $i > $o ).

thf(func_def_11,type,
    sK0: ( $i > $o ) > $i ).

thf(func_def_13,type,
    sK2: $i > $o ).

thf(func_def_14,type,
    ph3: 
      !>[X0: $tType] : X0 ).

thf(func_def_15,type,
    sK4: $i > $i > $o ).

thf(f50,plain,
    $false,
    inference(trivial_inequality_removal,[status(thm)],[f49]) ).

thf(f49,plain,
    $false = $true,
    inference(duplicate_literal_removal,[status(thm)],[f43]) ).

thf(f43,plain,
    ( ( $false = $true )
    | ( $false = $true ) ),
    inference(superposition,[status(thm)],[f42,f20]) ).

thf(f20,plain,
    ( ( sK2 @ ( sK0 @ sK2 ) )
    = $false ),
    inference(not_proxy_clausification,[status(thm)],[f19]) ).

thf(f19,plain,
    ( ( ~ ( sK2 @ ( sK0 @ sK2 ) ) )
    = $true ),
    inference(binary_proxy_clausification,[status(thm)],[f17]) ).

thf(f17,plain,
    ( ( ~ ( sK2 @ ( sK0 @ sK2 ) )
      & ( ( sK0 @ sK2 )
        = ( sK0
          @ ^ [Y0: $i] :
              ( ?? @ ( $i > $o )
              @ ^ [Y1: $i > $o] :
                  ( ~ ( Y1 @ ( sK0 @ Y1 ) )
                  & ( ( sK0 @ Y1 )
                    = Y0 ) ) ) ) ) )
    = $true ),
    inference(beta_eta_normalization,[status(thm)],[f16]) ).

thf(f16,plain,
    ( ( ^ [Y0: $i > $o] :
          ( ~ ( Y0 @ ( sK0 @ Y0 ) )
          & ( ( sK0 @ Y0 )
            = ( sK0
              @ ^ [Y1: $i] :
                  ( ?? @ ( $i > $o )
                  @ ^ [Y2: $i > $o] :
                      ( ~ ( Y2 @ ( sK0 @ Y2 ) )
                      & ( ( sK0 @ Y2 )
                        = Y1 ) ) ) ) ) )
      @ sK2 )
    = $true ),
    inference(sigma_clausification,[status(thm)],[f15]) ).

thf(f15,plain,
    ( ( ?? @ ( $i > $o )
      @ ^ [Y0: $i > $o] :
          ( ~ ( Y0 @ ( sK0 @ Y0 ) )
          & ( ( sK0 @ Y0 )
            = ( sK0
              @ ^ [Y1: $i] :
                  ( ?? @ ( $i > $o )
                  @ ^ [Y2: $i > $o] :
                      ( ~ ( Y2 @ ( sK0 @ Y2 ) )
                      & ( ( sK0 @ Y2 )
                        = Y1 ) ) ) ) ) ) )
    = $true ),
    inference(beta_eta_normalization,[status(thm)],[f14]) ).

thf(f14,plain,
    ( $true
    = ( ^ [Y0: $i] :
          ( ?? @ ( $i > $o )
          @ ^ [Y1: $i > $o] :
              ( ~ ( Y1 @ ( sK0 @ Y1 ) )
              & ( ( sK0 @ Y1 )
                = Y0 ) ) )
      @ ( sK0
        @ ^ [Y0: $i] :
            ( ?? @ ( $i > $o )
            @ ^ [Y1: $i > $o] :
                ( ~ ( Y1 @ ( sK0 @ Y1 ) )
                & ( ( sK0 @ Y1 )
                  = Y0 ) ) ) ) ) ),
    inference(definition_unfolding,[status(thm)],[f11,f13,f13]) ).

thf(f13,plain,
    ( d
    = ( ^ [Y0: $i] :
          ( ?? @ ( $i > $o )
          @ ^ [Y1: $i > $o] :
              ( ~ ( Y1 @ ( sK0 @ Y1 ) )
              & ( ( sK0 @ Y1 )
                = Y0 ) ) ) ) ),
    inference(cnf_transformation,[status(thm)],[f10]) ).

thf(f10,plain,
    ( ( d
      = ( ^ [Y0: $i] :
            ( ?? @ ( $i > $o )
            @ ^ [Y1: $i > $o] :
                ( ~ ( Y1 @ ( sK0 @ Y1 ) )
                & ( ( sK0 @ Y1 )
                  = Y0 ) ) ) ) )
    & ! [X1: $i > $o,X2: $i > $o] :
        ( ( X1 = X2 )
        | ( ( sK0 @ X1 )
         != ( sK0 @ X2 ) ) )
    & ( ( d @ ( sK0 @ d ) )
      = $true ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0])],[f8,f9]) ).

thf(f9,plain,
    ( ? [X0: ( $i > $o ) > $i] :
        ( ( d
          = ( ^ [Y0: $i] :
                ( ?? @ ( $i > $o )
                @ ^ [Y1: $i > $o] :
                    ( ~ ( Y1 @ ( X0 @ Y1 ) )
                    & ( ( X0 @ Y1 )
                      = Y0 ) ) ) ) )
        & ! [X1: $i > $o,X2: $i > $o] :
            ( ( X1 = X2 )
            | ( ( X0 @ X1 )
             != ( X0 @ X2 ) ) )
        & ( ( d @ ( X0 @ d ) )
          = $true ) )
   => ( ( d
        = ( ^ [Y0: $i] :
              ( ?? @ ( $i > $o )
              @ ^ [Y1: $i > $o] :
                  ( ~ ( Y1 @ ( sK0 @ Y1 ) )
                  & ( ( sK0 @ Y1 )
                    = Y0 ) ) ) ) )
      & ! [X2: $i > $o,X1: $i > $o] :
          ( ( X1 = X2 )
          | ( ( sK0 @ X1 )
           != ( sK0 @ X2 ) ) )
      & ( ( d @ ( sK0 @ d ) )
        = $true ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f8,plain,
    ? [X0: ( $i > $o ) > $i] :
      ( ( d
        = ( ^ [Y0: $i] :
              ( ?? @ ( $i > $o )
              @ ^ [Y1: $i > $o] :
                  ( ~ ( Y1 @ ( X0 @ Y1 ) )
                  & ( ( X0 @ Y1 )
                    = Y0 ) ) ) ) )
      & ! [X1: $i > $o,X2: $i > $o] :
          ( ( X1 = X2 )
          | ( ( X0 @ X1 )
           != ( X0 @ X2 ) ) )
      & ( ( d @ ( X0 @ d ) )
        = $true ) ),
    inference(flattening,[status(thm)],[f7]) ).

thf(f7,plain,
    ? [X0: ( $i > $o ) > $i] :
      ( ( ( d @ ( X0 @ d ) )
        = $true )
      & ! [X1: $i > $o,X2: $i > $o] :
          ( ( X1 = X2 )
          | ( ( X0 @ X1 )
           != ( X0 @ X2 ) ) )
      & ( d
        = ( ^ [Y0: $i] :
              ( ?? @ ( $i > $o )
              @ ^ [Y1: $i > $o] :
                  ( ~ ( Y1 @ ( X0 @ Y1 ) )
                  & ( ( X0 @ Y1 )
                    = Y0 ) ) ) ) ) ),
    inference(ennf_transformation,[status(thm)],[f6]) ).

thf(f6,plain,
    ~ ! [X0: ( $i > $o ) > $i] :
        ( ( ! [X1: $i > $o,X2: $i > $o] :
              ( ( ( X0 @ X1 )
                = ( X0 @ X2 ) )
             => ( X1 = X2 ) )
          & ( d
            = ( ^ [Y0: $i] :
                  ( ?? @ ( $i > $o )
                  @ ^ [Y1: $i > $o] :
                      ( ~ ( Y1 @ ( X0 @ Y1 ) )
                      & ( ( X0 @ Y1 )
                        = Y0 ) ) ) ) ) )
       => ( ( d @ ( X0 @ d ) )
         != $true ) ),
    inference(flattening,[status(thm)],[f5]) ).

thf(f5,plain,
    ~ ! [X0: ( $i > $o ) > $i] :
        ( ( ! [X1: $i > $o,X2: $i > $o] :
              ( ( ( X0 @ X1 )
                = ( X0 @ X2 ) )
             => ( X1 = X2 ) )
          & ( d
            = ( ^ [Y0: $i] :
                  ( ?? @ ( $i > $o )
                  @ ^ [Y1: $i > $o] :
                      ( ~ ( Y1 @ ( X0 @ Y1 ) )
                      & ( ( X0 @ Y1 )
                        = Y0 ) ) ) ) ) )
       => ( ( d @ ( X0 @ d ) )
         != $true ) ),
    inference(fool_elimination,[status(thm)],[f4]) ).

thf(f4,plain,
    ~ ! [X0: ( $i > $o ) > $i] :
        ( ( ! [X1: $i > $o,X2: $i > $o] :
              ( ( ( X0 @ X1 )
                = ( X0 @ X2 ) )
             => ( X1 = X2 ) )
          & ( ( ^ [X3: $i] :
                ? [X4: $i > $o] :
                  ( ( ( X0 @ X4 )
                    = X3 )
                  & ~ ( X4 @ ( X0 @ X4 ) ) ) )
            = d ) )
       => ~ ( d @ ( X0 @ d ) ) ),
    inference(rectify,[status(thm)],[f2]) ).

thf(f2,negated_conjecture,
    ~ ! [X0: ( $i > $o ) > $i] :
        ( ( ! [X1: $i > $o,X2: $i > $o] :
              ( ( ( X0 @ X1 )
                = ( X0 @ X2 ) )
             => ( X1 = X2 ) )
          & ( ( ^ [X3: $i] :
                ? [X4: $i > $o] :
                  ( ( ( X0 @ X4 )
                    = X3 )
                  & ~ ( X4 @ ( X0 @ X4 ) ) ) )
            = d ) )
       => ~ ( d @ ( X0 @ d ) ) ),
    inference(negated_conjecture,[status(cth)],[f1]) ).

thf(f1,conjecture,
    ! [X0: ( $i > $o ) > $i] :
      ( ( ! [X1: $i > $o,X2: $i > $o] :
            ( ( ( X0 @ X1 )
              = ( X0 @ X2 ) )
           => ( X1 = X2 ) )
        & ( ( ^ [X3: $i] :
              ? [X4: $i > $o] :
                ( ( ( X0 @ X4 )
                  = X3 )
                & ~ ( X4 @ ( X0 @ X4 ) ) ) )
          = d ) )
     => ~ ( d @ ( X0 @ d ) ) ),
    file('/export/starexec/sandbox/tmp/tmp.rGuHXuUAMD/DTF2THF_29113.p',cTHM143_pme) ).

thf(f11,plain,
    ( ( d @ ( sK0 @ d ) )
    = $true ),
    inference(cnf_transformation,[status(thm)],[f10]) ).

thf(f42,plain,
    ! [X0: $i > $o] :
      ( ( $true
        = ( sK2 @ ( sK0 @ X0 ) ) )
      | ( ( X0 @ ( sK0 @ X0 ) )
        = $true ) ),
    inference(equality_resolution,[status(thm)],[f41]) ).

thf(f41,plain,
    ! [X2: $i > $o,X1: $i] :
      ( ( ( sK0 @ X2 )
       != X1 )
      | ( ( X2 @ ( sK0 @ X2 ) )
        = $true )
      | ( $true
        = ( sK2 @ X1 ) ) ),
    inference(equality_proxy_clausification,[status(thm)],[f40]) ).

thf(f40,plain,
    ! [X2: $i > $o,X1: $i] :
      ( ( ( X2 @ ( sK0 @ X2 ) )
        = $true )
      | ( $false
        = ( ( sK0 @ X2 )
          = X1 ) )
      | ( $true
        = ( sK2 @ X1 ) ) ),
    inference(not_proxy_clausification,[status(thm)],[f39]) ).

thf(f39,plain,
    ! [X2: $i > $o,X1: $i] :
      ( ( ( ~ ( X2 @ ( sK0 @ X2 ) ) )
        = $false )
      | ( $true
        = ( sK2 @ X1 ) )
      | ( $false
        = ( ( sK0 @ X2 )
          = X1 ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f38]) ).

thf(f38,plain,
    ! [X2: $i > $o,X1: $i] :
      ( ( ( ~ ( X2 @ ( sK0 @ X2 ) )
          & ( ( sK0 @ X2 )
            = X1 ) )
        = $false )
      | ( $true
        = ( sK2 @ X1 ) ) ),
    inference(beta_eta_normalization,[status(thm)],[f37]) ).

thf(f37,plain,
    ! [X2: $i > $o,X1: $i] :
      ( ( $true
        = ( sK2 @ X1 ) )
      | ( $false
        = ( ^ [Y0: $i > $o] :
              ( ~ ( Y0 @ ( sK0 @ Y0 ) )
              & ( ( sK0 @ Y0 )
                = X1 ) )
          @ X2 ) ) ),
    inference(pi_clausification,[status(thm)],[f29]) ).

thf(f29,plain,
    ! [X1: $i] :
      ( ( $false
        = ( ?? @ ( $i > $o )
          @ ^ [Y0: $i > $o] :
              ( ~ ( Y0 @ ( sK0 @ Y0 ) )
              & ( ( sK0 @ Y0 )
                = X1 ) ) ) )
      | ( $true
        = ( sK2 @ X1 ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f28]) ).

thf(f28,plain,
    ! [X1: $i] :
      ( ( sK2 @ X1 )
      = ( ?? @ ( $i > $o )
        @ ^ [Y0: $i > $o] :
            ( ~ ( Y0 @ ( sK0 @ Y0 ) )
            & ( ( sK0 @ Y0 )
              = X1 ) ) ) ),
    inference(beta_eta_normalization,[status(thm)],[f27]) ).

thf(f27,plain,
    ! [X1: $i] :
      ( ( ^ [Y0: $i] :
            ( ?? @ ( $i > $o )
            @ ^ [Y1: $i > $o] :
                ( ~ ( Y1 @ ( sK0 @ Y1 ) )
                & ( ( sK0 @ Y1 )
                  = Y0 ) ) )
        @ X1 )
      = ( sK2 @ X1 ) ),
    inference(argument_congruence,[status(thm)],[f26]) ).

thf(f26,plain,
    ( ( ^ [Y0: $i] :
          ( ?? @ ( $i > $o )
          @ ^ [Y1: $i > $o] :
              ( ~ ( Y1 @ ( sK0 @ Y1 ) )
              & ( ( sK0 @ Y1 )
                = Y0 ) ) ) )
    = sK2 ),
    inference(equality_resolution,[status(thm)],[f23]) ).

thf(f23,plain,
    ! [X0: $i > $o] :
      ( ( ( sK0 @ sK2 )
       != ( sK0 @ X0 ) )
      | ( ( ^ [Y0: $i] :
              ( ?? @ ( $i > $o )
              @ ^ [Y1: $i > $o] :
                  ( ~ ( Y1 @ ( sK0 @ Y1 ) )
                  & ( ( sK0 @ Y1 )
                    = Y0 ) ) ) )
        = X0 ) ),
    inference(superposition,[status(thm)],[f12,f21]) ).

thf(f21,plain,
    ( ( sK0
      @ ^ [Y0: $i] :
          ( ?? @ ( $i > $o )
          @ ^ [Y1: $i > $o] :
              ( ~ ( Y1 @ ( sK0 @ Y1 ) )
              & ( ( sK0 @ Y1 )
                = Y0 ) ) ) )
    = ( sK0 @ sK2 ) ),
    inference(equality_proxy_clausification,[status(thm)],[f18]) ).

thf(f18,plain,
    ( $true
    = ( ( sK0 @ sK2 )
      = ( sK0
        @ ^ [Y0: $i] :
            ( ?? @ ( $i > $o )
            @ ^ [Y1: $i > $o] :
                ( ~ ( Y1 @ ( sK0 @ Y1 ) )
                & ( ( sK0 @ Y1 )
                  = Y0 ) ) ) ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f17]) ).

thf(f12,plain,
    ! [X2: $i > $o,X1: $i > $o] :
      ( ( ( sK0 @ X1 )
       != ( sK0 @ X2 ) )
      | ( X1 = X2 ) ),
    inference(cnf_transformation,[status(thm)],[f10]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.11  % Problem  : SEU902^5 : TPTP v9.2.1. Released v4.0.0.
% 0.00/0.12  % Command  : /export/starexec/sandbox/solver/bin/run_DT2H2X /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 0.13/0.32  % Computer : n010.cluster.edu
% 0.13/0.32  % Model    : x86_64 x86_64
% 0.13/0.32  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.32  % Memory   : 8042.1875MB
% 0.13/0.32  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.32  % CPULimit : 300
% 0.13/0.32  % WCLimit  : 300
% 0.13/0.32  % DateTime : Tue Feb 24 12:36:03 EST 2026
% 0.13/0.32  % CPUTime  : 
% 0.13/0.32  Running /export/starexec/sandbox/solver/bin/run_DT2H2X /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 0.15/0.41  ---- Original DTF file ---
% 0.15/0.42  thf(spec,logic,$$dhol).
% 0.15/0.42  %------------------------------------------------------------------------------
% 0.15/0.42  % File     : SEU902^5 : TPTP v9.2.1. Released v4.0.0.
% 0.15/0.42  % Domain   : Set Theory
% 0.15/0.42  % Problem  : TPS problem THM143
% 0.15/0.42  % Version  : Especial.
% 0.15/0.42  % English  : A lemma for the Injective Cantor Theorem X5309.
% 0.15/0.42  
% 0.15/0.42  % Refs     : [Bro09] Brown (2009), Email to Geoff Sutcliffe
% 0.15/0.42  % Source   : [Bro09]
% 0.15/0.42  % Names    : tps_0506 [Bro09]
% 0.15/0.42  %          : THM143 [TPS]
% 0.15/0.42  
% 0.15/0.42  % Status   : Theorem
% 0.15/0.42  % Rating   : 0.00 v9.0.0, 0.10 v8.2.0, 0.23 v8.1.0, 0.18 v7.5.0, 0.14 v7.4.0, 0.22 v7.2.0, 0.12 v7.1.0, 0.25 v7.0.0, 0.29 v6.4.0, 0.33 v6.3.0, 0.40 v6.2.0, 0.14 v6.1.0, 0.29 v5.5.0, 0.17 v5.4.0, 0.20 v5.3.0, 0.40 v5.1.0, 0.60 v5.0.0, 0.20 v4.1.0, 0.33 v4.0.0
% 0.15/0.42  % Syntax   : Number of formulae    :    2 (   0 unt;   1 typ;   0 def)
% 0.15/0.42  %            Number of atoms       :    7 (   4 equ;   0 cnn)
% 0.15/0.42  %            Maximal formula atoms :    5 (   7 avg)
% 0.15/0.42  %            Number of connectives :   13 (   2   ~;   0   |;   2   &;   7   @)
% 0.15/0.42  %                                         (   0 <=>;   2  =>;   0  <=;   0 <~>)
% 0.15/0.42  %            Maximal formula depth :    7 (   7 avg)
% 0.15/0.42  %            Number of types       :    2 (   0 usr)
% 0.15/0.42  %            Number of type conns  :    6 (   6   >;   0   *;   0   +;   0  <<)
% 0.15/0.42  %            Number of symbols     :    2 (   1 usr;   0 con; 1-2 aty)
% 0.15/0.42  %            Number of variables   :    5 (   1   ^;   3   !;   1   ?;   5   :)
% 0.15/0.42  % SPC      : TH0_THM_EQU_NAR
% 0.15/0.42  
% 0.15/0.42  % Comments : This problem is from the TPS library. Copyright (c) 2009 The TPS
% 0.15/0.42  %            project in the Department of Mathematical Sciences at Carnegie
% 0.15/0.42  %            Mellon University. Distributed under the Creative Commons copyleft
% 0.15/0.42  %            license: http://creativecommons.org/licenses/by-sa/3.0/
% 0.15/0.42  %          : Polymorphic definitions expanded.
% 0.15/0.42  %------------------------------------------------------------------------------
% 0.15/0.42  thf(d,type,
% 0.15/0.42      d: $i > $o ).
% 0.15/0.42  
% 0.15/0.42  thf(cTHM143_pme,conjecture,
% 0.15/0.42      ! [Xh: ( $i > $o ) > $i] :
% 0.15/0.42        ( ( ! [Xp: $i > $o,Xq: $i > $o] :
% 0.15/0.42              ( ( ( Xh @ Xp )
% 0.15/0.42                = ( Xh @ Xq ) )
% 0.15/0.42             => ( Xp = Xq ) )
% 0.15/0.42          & ( d
% 0.15/0.42            = ( ^ [Xz: $i] :
% 0.15/0.42                ? [Xt: $i > $o] :
% 0.15/0.42                  ( ~ ( Xt @ ( Xh @ Xt ) )
% 0.15/0.42                  & ( Xz
% 0.15/0.42                    = ( Xh @ Xt ) ) ) ) ) )
% 0.15/0.42       => ~ ( d @ ( Xh @ d ) ) ) ).
% 0.15/0.42  
% 0.15/0.42  %------------------------------------------------------------------------------
% 0.15/0.42  ------------------------
% 1.12/1.12  ---- Embedded in THF ---
% 1.12/1.12  %%% This output was generated by embedproblem, version 1.9.5 (library version 1.9).
% 1.12/1.12  %%% Generated on Tue Feb 24 12:36:03 EST 2026
% 1.12/1.12  %%% using '$$dhol' embedding, version 1.3.0.
% 1.12/1.12  %%% Logic specification used:
% 1.12/1.12  %%% thf(spec, logic, $$dhol).
% 1.12/1.12  
% 1.12/1.12  % SZS output start ListOfTHF for /export/starexec/sandbox/tmp/tmp.rGuHXuUAMD/DTF2DTF29113.p
% See solution above
% 1.12/1.12  ------------------------
% 1.32/1.13  ---- Cleaned THF ---
% 1.32/1.13  thf(d,type,
% 1.32/1.13      d: $i > $o ).
% 1.32/1.13  
% 1.32/1.13  thf(cTHM143_pme,conjecture,
% 1.32/1.13      ! [Xh: ( $i > $o ) > $i] :
% 1.32/1.13        ( ( ! [Xp: $i > $o,Xq: $i > $o] :
% 1.32/1.13              ( ( ( Xh @ Xp )
% 1.32/1.13                = ( Xh @ Xq ) )
% 1.32/1.13             => ( Xp = Xq ) )
% 1.32/1.13          & ( d
% 1.32/1.13            = ( ^ [Xz: $i] :
% 1.32/1.13                ? [Xt: $i > $o] :
% 1.32/1.13                  ( ~ ( Xt @ ( Xh @ Xt ) )
% 1.32/1.13                  & ( Xz
% 1.32/1.13                    = ( Xh @ Xt ) ) ) ) ) )
% 1.32/1.13       => ~ ( d @ ( Xh @ d ) ) ) ).
% 1.32/1.13  ------------------------
% 1.32/1.14  % (29211)lrs+1002_1:8_bd=off:fd=off:hud=10:tnu=1:i=183:si=on:rtra=on_0 on DTF2THF_29113 for (2999ds/183Mi)
% 1.32/1.15  % (29214)lrs+10_1:1_au=on:inj=on:i=2:si=on:rtra=on_0 on DTF2THF_29113 for (2999ds/2Mi)
% 1.32/1.15  % (29213)dis+1010_1:1_au=on:cbe=off:chr=on:fsr=off:hfsq=on:nm=64:sos=theory:sp=weighted_frequency:i=27:si=on:rtra=on_0 on DTF2THF_29113 for (2999ds/27Mi)
% 1.32/1.15  % (29215)lrs+1002_1:128_aac=none:au=on:cnfonf=lazy_not_gen_be_off:sos=all:i=2:si=on:rtra=on_0 on DTF2THF_29113 for (2999ds/2Mi)
% 1.32/1.15  % (29216)lrs+1002_1:1_au=on:bd=off:e2e=on:sd=2:sos=on:ss=axioms:i=275:si=on:rtra=on_0 on DTF2THF_29113 for (2999ds/275Mi)
% 1.32/1.15  % (29217)lrs+1004_1:128_cond=on:e2e=on:sp=weighted_frequency:i=18:si=on:rtra=on_0 on DTF2THF_29113 for (2999ds/18Mi)
% 1.32/1.15  % (29212)lrs+10_1:1_c=on:cnfonf=conj_eager:fd=off:fe=off:kws=frequency:spb=intro:i=4:si=on:rtra=on_0 on DTF2THF_29113 for (2999ds/4Mi)
% 1.32/1.15  % (29214)Instruction limit reached!
% 1.32/1.15  % (29214)------------------------------
% 1.32/1.15  % (29214)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.32/1.15  % (29214)Termination reason: Unknown
% 1.32/1.15  % (29214)Termination phase: Property scanning
% 1.32/1.15  % (29215)Instruction limit reached!
% 1.32/1.15  % (29215)------------------------------
% 1.32/1.15  % (29215)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.32/1.15  % (29215)Termination reason: Unknown
% 1.32/1.15  % (29215)Termination phase: Property scanning
% 1.32/1.15  
% 1.32/1.15  % (29215)Memory used [KB]: 895
% 1.32/1.15  % (29215)Time elapsed: 0.002 s
% 1.32/1.15  % (29215)Instructions burned: 2 (million)
% 1.32/1.15  % (29215)------------------------------
% 1.32/1.15  % (29215)------------------------------
% 1.32/1.15  
% 1.32/1.15  % (29214)Memory used [KB]: 895
% 1.32/1.15  % (29214)Time elapsed: 0.002 s
% 1.32/1.15  % (29214)Instructions burned: 2 (million)
% 1.32/1.15  % (29214)------------------------------
% 1.32/1.15  % (29214)------------------------------
% 1.32/1.15  % (29212)Instruction limit reached!
% 1.32/1.15  % (29212)------------------------------
% 1.32/1.15  % (29212)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.32/1.15  % (29212)Termination reason: Unknown
% 1.32/1.15  % (29212)Termination phase: Saturation
% 1.32/1.15  
% 1.32/1.15  % (29212)Memory used [KB]: 5500
% 1.32/1.15  % (29212)Time elapsed: 0.004 s
% 1.32/1.15  % (29212)Instructions burned: 5 (million)
% 1.32/1.15  % (29212)------------------------------
% 1.32/1.15  % (29212)------------------------------
% 1.32/1.15  % (29217)First to succeed.
% 1.32/1.15  % (29213)Also succeeded, but the first one will report.
% 1.32/1.15  % (29216)Also succeeded, but the first one will report.
% 1.32/1.15  % (29217)Refutation found. Thanks to Tanya!
% 1.32/1.15  % SZS status Theorem for DTF2THF_29113
% 1.32/1.15  % SZS output start Proof for DTF2THF_29113
% 1.32/1.15  thf(func_def_0, type, d: $i > $o).
% 1.32/1.15  thf(func_def_11, type, sK0: ($i > $o) > $i).
% 1.32/1.15  thf(func_def_13, type, sK2: $i > $o).
% 1.32/1.15  thf(func_def_14, type, ph3: !>[X0: $tType]:(X0)).
% 1.32/1.15  thf(func_def_15, type, sK4: $i > $i > $o).
% 1.32/1.15  thf(f50,plain,(
% 1.32/1.15    $false),
% 1.32/1.15    inference(trivial_inequality_removal,[status(thm)],[f49])).
% 1.32/1.15  thf(f49,plain,(
% 1.32/1.15    ($false = $true)),
% 1.32/1.15    inference(duplicate_literal_removal,[status(thm)],[f43])).
% 1.32/1.15  thf(f43,plain,(
% 1.32/1.15    ($false = $true) | ($false = $true)),
% 1.32/1.15    inference(superposition,[status(thm)],[f42,f20])).
% 1.32/1.15  thf(f20,plain,(
% 1.32/1.15    ((sK2 @ (sK0 @ sK2)) = $false)),
% 1.32/1.15    inference(not_proxy_clausification,[status(thm)],[f19])).
% 1.32/1.15  thf(f19,plain,(
% 1.32/1.15    ((~ (sK2 @ (sK0 @ sK2))) = $true)),
% 1.32/1.15    inference(binary_proxy_clausification,[status(thm)],[f17])).
% 1.32/1.15  thf(f17,plain,(
% 1.32/1.15    (((~ (sK2 @ (sK0 @ sK2))) & ((sK0 @ sK2) = (sK0 @ (^[Y0 : $i]: (?? @ ($i > $o) @ (^[Y1 : $i > $o]: ((~ (Y1 @ (sK0 @ Y1))) & ((sK0 @ Y1) = Y0)))))))) = $true)),
% 1.32/1.15    inference(beta_eta_normalization,[status(thm)],[f16])).
% 1.32/1.15  thf(f16,plain,(
% 1.32/1.15    (((^[Y0 : $i > $o]: ((~ (Y0 @ (sK0 @ Y0))) & ((sK0 @ Y0) = (sK0 @ (^[Y1 : $i]: (?? @ ($i > $o) @ (^[Y2 : $i > $o]: ((~ (Y2 @ (sK0 @ Y2))) & ((sK0 @ Y2) = Y1))))))))) @ sK2) = $true)),
% 1.32/1.15    inference(sigma_clausification,[status(thm)],[f15])).
% 1.32/1.15  thf(f15,plain,(
% 1.32/1.15    ((?? @ ($i > $o) @ (^[Y0 : $i > $o]: ((~ (Y0 @ (sK0 @ Y0))) & ((sK0 @ Y0) = (sK0 @ (^[Y1 : $i]: (?? @ ($i > $o) @ (^[Y2 : $i > $o]: ((~ (Y2 @ (sK0 @ Y2))) & ((sK0 @ Y2) = Y1)))))))))) = $true)),
% 1.32/1.15    inference(beta_eta_normalization,[status(thm)],[f14])).
% 1.32/1.15  thf(f14,plain,(
% 1.32/1.15    ($true = ((^[Y0 : $i]: (?? @ ($i > $o) @ (^[Y1 : $i > $o]: ((~ (Y1 @ (sK0 @ Y1))) & ((sK0 @ Y1) = Y0))))) @ (sK0 @ (^[Y0 : $i]: (?? @ ($i > $o) @ (^[Y1 : $i > $o]: ((~ (Y1 @ (sK0 @ Y1))) & ((sK0 @ Y1) = Y0))))))))),
% 1.32/1.15    inference(definition_unfolding,[status(thm)],[f11,f13,f13])).
% 1.32/1.15  thf(f13,plain,(
% 1.32/1.15    (d = (^[Y0 : $i]: (?? @ ($i > $o) @ (^[Y1 : $i > $o]: ((~ (Y1 @ (sK0 @ Y1))) & ((sK0 @ Y1) = Y0))))))),
% 1.32/1.15    inference(cnf_transformation,[status(thm)],[f10])).
% 1.32/1.15  thf(f10,plain,(
% 1.32/1.15    (d = (^[Y0 : $i]: (?? @ ($i > $o) @ (^[Y1 : $i > $o]: ((~ (Y1 @ (sK0 @ Y1))) & ((sK0 @ Y1) = Y0)))))) & ! [X1 : $i > $o,X2 : $i > $o] : ((X1 = X2) | ((sK0 @ X1) != (sK0 @ X2))) & ((d @ (sK0 @ d)) = $true)),
% 1.32/1.15    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0])],[f8,f9])).
% 1.32/1.15  thf(f9,plain,(
% 1.32/1.15    ? [X0 : ($i > $o) > $i] : ((d = (^[Y0 : $i]: (?? @ ($i > $o) @ (^[Y1 : $i > $o]: ((~ (Y1 @ (X0 @ Y1))) & ((X0 @ Y1) = Y0)))))) & ! [X1 : $i > $o,X2 : $i > $o] : ((X1 = X2) | ((X0 @ X1) != (X0 @ X2))) & ((d @ (X0 @ d)) = $true)) => ((d = (^[Y0 : $i]: (?? @ ($i > $o) @ (^[Y1 : $i > $o]: ((~ (Y1 @ (sK0 @ Y1))) & ((sK0 @ Y1) = Y0)))))) & ! [X2 : $i > $o,X1 : $i > $o] : ((X1 = X2) | ((sK0 @ X1) != (sK0 @ X2))) & ((d @ (sK0 @ d)) = $true))),
% 1.32/1.15    introduced(definition,[],[choice_axiom])).
% 1.32/1.15  thf(f8,plain,(
% 1.32/1.15    ? [X0 : ($i > $o) > $i] : ((d = (^[Y0 : $i]: (?? @ ($i > $o) @ (^[Y1 : $i > $o]: ((~ (Y1 @ (X0 @ Y1))) & ((X0 @ Y1) = Y0)))))) & ! [X1 : $i > $o,X2 : $i > $o] : ((X1 = X2) | ((X0 @ X1) != (X0 @ X2))) & ((d @ (X0 @ d)) = $true))),
% 1.32/1.15    inference(flattening,[status(thm)],[f7])).
% 1.32/1.15  thf(f7,plain,(
% 1.32/1.15    ? [X0 : ($i > $o) > $i] : (((d @ (X0 @ d)) = $true) & (! [X1 : $i > $o,X2 : $i > $o] : ((X1 = X2) | ((X0 @ X1) != (X0 @ X2))) & (d = (^[Y0 : $i]: (?? @ ($i > $o) @ (^[Y1 : $i > $o]: ((~ (Y1 @ (X0 @ Y1))) & ((X0 @ Y1) = Y0))))))))),
% 1.32/1.15    inference(ennf_transformation,[status(thm)],[f6])).
% 1.32/1.15  thf(f6,plain,(
% 1.32/1.15    ~! [X0 : ($i > $o) > $i] : ((! [X1 : $i > $o,X2 : $i > $o] : (((X0 @ X1) = (X0 @ X2)) => (X1 = X2)) & (d = (^[Y0 : $i]: (?? @ ($i > $o) @ (^[Y1 : $i > $o]: ((~ (Y1 @ (X0 @ Y1))) & ((X0 @ Y1) = Y0))))))) => ((d @ (X0 @ d)) != $true))),
% 1.32/1.15    inference(flattening,[status(thm)],[f5])).
% 1.32/1.15  thf(f5,plain,(
% 1.32/1.15    ~! [X0 : ($i > $o) > $i] : ((! [X1 : $i > $o,X2 : $i > $o] : (((X0 @ X1) = (X0 @ X2)) => (X1 = X2)) & (d = (^[Y0 : $i]: (?? @ ($i > $o) @ (^[Y1 : $i > $o]: ((~ (Y1 @ (X0 @ Y1))) & ((X0 @ Y1) = Y0))))))) => ~((d @ (X0 @ d)) = $true))),
% 1.32/1.15    inference(fool_elimination,[status(thm)],[f4])).
% 1.32/1.15  thf(f4,plain,(
% 1.32/1.15    ~! [X0 : ($i > $o) > $i] : ((! [X1 : $i > $o,X2 : $i > $o] : (((X0 @ X1) = (X0 @ X2)) => (X1 = X2)) & ((^[X3 : $i] : (? [X4 : $i > $o] : (((X0 @ X4) = X3) & ~(X4 @ (X0 @ X4))))) = d)) => ~(d @ (X0 @ d)))),
% 1.32/1.15    inference(rectify,[status(thm)],[f2])).
% 1.32/1.15  thf(f2,negated_conjecture,(
% 1.32/1.15    ~! [X0 : ($i > $o) > $i] : ((! [X1 : $i > $o,X2 : $i > $o] : (((X0 @ X1) = (X0 @ X2)) => (X1 = X2)) & ((^[X3 : $i] : (? [X4 : $i > $o] : (((X0 @ X4) = X3) & ~(X4 @ (X0 @ X4))))) = d)) => ~(d @ (X0 @ d)))),
% 1.32/1.15    inference(negated_conjecture,[status(cth)],[f1])).
% 1.32/1.15  thf(f1,conjecture,(
% 1.32/1.15    ! [X0 : ($i > $o) > $i] : ((! [X1 : $i > $o,X2 : $i > $o] : (((X0 @ X1) = (X0 @ X2)) => (X1 = X2)) & ((^[X3 : $i] : (? [X4 : $i > $o] : (((X0 @ X4) = X3) & ~(X4 @ (X0 @ X4))))) = d)) => ~(d @ (X0 @ d)))),
% 1.32/1.15    file('/export/starexec/sandbox/tmp/tmp.rGuHXuUAMD/DTF2THF_29113.p',cTHM143_pme)).
% 1.32/1.15  thf(f11,plain,(
% 1.32/1.15    ((d @ (sK0 @ d)) = $true)),
% 1.32/1.15    inference(cnf_transformation,[status(thm)],[f10])).
% 1.32/1.15  thf(f42,plain,(
% 1.32/1.15    ( ! [X0 : $i > $o] : (($true = (sK2 @ (sK0 @ X0))) | ((X0 @ (sK0 @ X0)) = $true)) )),
% 1.32/1.15    inference(equality_resolution,[status(thm)],[f41])).
% 1.32/1.15  thf(f41,plain,(
% 1.32/1.15    ( ! [X2 : $i > $o,X1 : $i] : (((sK0 @ X2) != X1) | ((X2 @ (sK0 @ X2)) = $true) | ($true = (sK2 @ X1))) )),
% 1.32/1.15    inference(equality_proxy_clausification,[status(thm)],[f40])).
% 1.32/1.15  thf(f40,plain,(
% 1.32/1.15    ( ! [X2 : $i > $o,X1 : $i] : (((X2 @ (sK0 @ X2)) = $true) | ($false = ((sK0 @ X2) = X1)) | ($true = (sK2 @ X1))) )),
% 1.32/1.15    inference(not_proxy_clausification,[status(thm)],[f39])).
% 1.32/1.15  thf(f39,plain,(
% 1.32/1.15    ( ! [X2 : $i > $o,X1 : $i] : (((~ (X2 @ (sK0 @ X2))) = $false) | ($true = (sK2 @ X1)) | ($false = ((sK0 @ X2) = X1))) )),
% 1.32/1.15    inference(binary_proxy_clausification,[status(thm)],[f38])).
% 1.32/1.15  thf(f38,plain,(
% 1.32/1.15    ( ! [X2 : $i > $o,X1 : $i] : ((((~ (X2 @ (sK0 @ X2))) & ((sK0 @ X2) = X1)) = $false) | ($true = (sK2 @ X1))) )),
% 1.32/1.15    inference(beta_eta_normalization,[status(thm)],[f37])).
% 1.32/1.15  thf(f37,plain,(
% 1.32/1.15    ( ! [X2 : $i > $o,X1 : $i] : (($true = (sK2 @ X1)) | ($false = ((^[Y0 : $i > $o]: ((~ (Y0 @ (sK0 @ Y0))) & ((sK0 @ Y0) = X1))) @ X2))) )),
% 1.32/1.15    inference(pi_clausification,[status(thm)],[f29])).
% 1.32/1.15  thf(f29,plain,(
% 1.32/1.15    ( ! [X1 : $i] : (($false = (?? @ ($i > $o) @ (^[Y0 : $i > $o]: ((~ (Y0 @ (sK0 @ Y0))) & ((sK0 @ Y0) = X1))))) | ($true = (sK2 @ X1))) )),
% 1.32/1.15    inference(binary_proxy_clausification,[status(thm)],[f28])).
% 1.32/1.15  thf(f28,plain,(
% 1.32/1.15    ( ! [X1 : $i] : (((sK2 @ X1) = (?? @ ($i > $o) @ (^[Y0 : $i > $o]: ((~ (Y0 @ (sK0 @ Y0))) & ((sK0 @ Y0) = X1)))))) )),
% 1.32/1.15    inference(beta_eta_normalization,[status(thm)],[f27])).
% 1.32/1.15  thf(f27,plain,(
% 1.32/1.15    ( ! [X1 : $i] : ((((^[Y0 : $i]: (?? @ ($i > $o) @ (^[Y1 : $i > $o]: ((~ (Y1 @ (sK0 @ Y1))) & ((sK0 @ Y1) = Y0))))) @ X1) = (sK2 @ X1))) )),
% 1.32/1.15    inference(argument_congruence,[status(thm)],[f26])).
% 1.32/1.15  thf(f26,plain,(
% 1.32/1.15    ((^[Y0 : $i]: (?? @ ($i > $o) @ (^[Y1 : $i > $o]: ((~ (Y1 @ (sK0 @ Y1))) & ((sK0 @ Y1) = Y0))))) = sK2)),
% 1.32/1.15    inference(equality_resolution,[status(thm)],[f23])).
% 1.32/1.15  thf(f23,plain,(
% 1.32/1.15    ( ! [X0 : $i > $o] : (((sK0 @ sK2) != (sK0 @ X0)) | ((^[Y0 : $i]: (?? @ ($i > $o) @ (^[Y1 : $i > $o]: ((~ (Y1 @ (sK0 @ Y1))) & ((sK0 @ Y1) = Y0))))) = X0)) )),
% 1.32/1.15    inference(superposition,[status(thm)],[f12,f21])).
% 1.32/1.15  thf(f21,plain,(
% 1.32/1.15    ((sK0 @ (^[Y0 : $i]: (?? @ ($i > $o) @ (^[Y1 : $i > $o]: ((~ (Y1 @ (sK0 @ Y1))) & ((sK0 @ Y1) = Y0)))))) = (sK0 @ sK2))),
% 1.32/1.15    inference(equality_proxy_clausification,[status(thm)],[f18])).
% 1.32/1.15  thf(f18,plain,(
% 1.32/1.15    ($true = ((sK0 @ sK2) = (sK0 @ (^[Y0 : $i]: (?? @ ($i > $o) @ (^[Y1 : $i > $o]: ((~ (Y1 @ (sK0 @ Y1))) & ((sK0 @ Y1) = Y0))))))))),
% 1.32/1.15    inference(binary_proxy_clausification,[status(thm)],[f17])).
% 1.32/1.15  thf(f12,plain,(
% 1.32/1.15    ( ! [X2 : $i > $o,X1 : $i > $o] : (((sK0 @ X1) != (sK0 @ X2)) | (X1 = X2)) )),
% 1.32/1.15    inference(cnf_transformation,[status(thm)],[f10])).
% 1.32/1.15  % SZS output end Proof for DTF2THF_29113
% 1.32/1.15  % (29217)------------------------------
% 1.32/1.15  % (29217)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.32/1.15  % (29217)Termination reason: Refutation
% 1.32/1.15  
% 1.32/1.15  % (29217)Memory used [KB]: 5500
% 1.32/1.15  % (29217)Time elapsed: 0.006 s
% 1.32/1.15  % (29217)Instructions burned: 6 (million)
% 1.32/1.15  % (29217)------------------------------
% 1.32/1.15  % (29217)------------------------------
% 1.32/1.15  % (29210)Success in time 0.014 s
%------------------------------------------------------------------------------